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  1. Scion xB Engine
    Recently bought Scion xB 2005 When purchased had 3 codes P0 441 p0442 p0446 Figure it was a purge valve issue or leak An didn’t cause issues at the time Almost 3 weeks later Bad idle surges Bad misfire comes an goes throws code for cylinder 1 Would the purge valve cause a misfire...
  2. Scion xB Engine, Tech, & Performance
    has any one tuned there stock engine? I have read around allot people tunes there cars and gain small hp. Just wanted to know if any one has done it before and is it worth the cash? gaining a slight hp gain is still better than 109hp
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